| 摘要 |
<p>A switch apparatus comprising a housing configured for receiving a flexible foldable sheet having printed circuit conductive patterns or conductors thereon, the patterns and conductors being so configured and arranged that when assembled, the switch provides a directional signal control portion, a keyboard portion and a switch portion. The flexible sheet is provided with three sections of substantially identical planar configuration, with two adjacent sections having printed circuit conductors and conductive patterns thereon with the third section being an insulating section adapted for interposing between the first two sections when folded. In the folded condition, the first and second sections have the conductive patterns thereon in facing relation with the insulating section having apertures therein in alignment with opposing conductive patterns adapted, upon flexing of one of the sheets, for providing circuit closure.</p> |
